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Finding the Third Proportional to 6,220 and 8,696

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Solution

The third proportional to 6,220 and 8,696 is: 12,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220 : 8,696 = 8,696 : x
  2. Step 2: Convert to fraction form
    6,220/8,696 = 8,696/x
  3. Step 3: Cross multiply
    6,220x = 8,696 × 8,696
  4. Step 4: Simplify right side
    6,220x = 75,620,416
  5. Step 5: Solve for x
    x = 75,620,416/6,220
  6. Step 6: Final answer
    x = 12,157.62

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.